Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  Checkmark Nebula  ·  HD167928  ·  HD167999  ·  HD168018  ·  HD168098  ·  HD168114  ·  HD168162  ·  HD168163  ·  HD168164  ·  HD168165  ·  HD168226  ·  HD168227  ·  HD168228  ·  HD168276  ·  HD168277  ·  HD168302  ·  HD168415  ·  HD168417  ·  HD168445  ·  HD168446  ·  HD168447  ·  HD168462  ·  HD168485  ·  HD168521  ·  HD168567  ·  HD168568  ·  HD168569  ·  HD168585  ·  HD168607  ·  HD168625  ·  And 21 more.
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Omega Nebula, Andrew Hayes
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Omega Nebula

Getting plate-solving status, please wait...
Omega Nebula, Andrew Hayes
Powered byPixInsight

Omega Nebula

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Description

A slight software glitch meant I spent nearly 4 hours on a target I wasn't trying for. But just the same, with all the clouds we have had lately, just happy to get something.
This is the Omega Nebula, also known as the Swan Nebula, Checkmark Nebula, Lobster Nebula, and the Horseshoe Nebula[1][2] (catalogued as Messier 17 or M17 or NGC 6618) is an H II region in the constellation Sagittarius. It was discovered by Philippe Loys de Chéseaux in 1745
The Omega Nebula is between 5,000 and 6,000 light-years from Earth and it spans some 15 light-years in diameter. The cloud of interstellar matter of which this nebula is a part is roughly 40 light-years in diameter and has a mass of 30,000 solar masses.[3] The total mass of the Omega Nebula is an estimated 800 solar masses.[4]
It is considered one of the brightest and most massive star-forming regions of our galaxy.[3]
It sill amazes me that when I go out with the equipment that I am capturing photons over 5,000 years old when they hit my sensor. And some even older.
Am particularly happy with the fiery twister in the heart of this one.
Hoping the clouds play fair, and that tonight I can go Lobster hunting for real........

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Omega Nebula, Andrew Hayes